Invention Grant
- Patent Title: Light-emitting module with wavelength converters and light-absorbing substance
- Patent Title (中): 具有波长转换器和吸光材料的发光模块
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Application No.: US14105356Application Date: 2013-12-13
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Publication No.: US09279549B2Publication Date: 2016-03-08
- Inventor: Kenji Sugiura
- Applicant: PANASONIC CORPORATION
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2012-276709 20121219
- Main IPC: F21K99/00
- IPC: F21K99/00 ; H05B33/10 ; H05B33/14 ; H01L25/075 ; H01L33/50

Abstract:
A light-emitting module includes a light-emitting element, a first wavelength converter and a second wavelength converter. The first wavelength converter is located in an optical pathway of emitted light, and converts a portion of the emitted light to light in a first visible wavelength band. The second wavelength converter is located in the optical pathway on an opposite side of the first wavelength converter relative to the light-emitting element, and converts at least a portion of light passing unconverted through the first wavelength converter to light in a second visible wavelength band, differing from the first visible wavelength band. The light-emitting module also includes a light-absorbing substance, absorbing light in at least a wavelength band from 570 nm to 590 nm, which is present in the optical pathway between the light-emitting element and the second wavelength converter, the second wavelength converter not containing the light-absorbing substance.
Public/Granted literature
- US20140167599A1 LIGHT-EMITTING MODULE AND LIGHTING SOURCE INCLUDING THE SAME Public/Granted day:2014-06-19
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